Design-to-Test Approach for Programmable Controllers in Safety-Critical Automation Systems

This article presents a design-to-test (DTT) approach for enhancing black-box complete conformance testing of programmable controllers, where their specifications can be modeled as finite state machines. Given an automation system, the testing objective is to check whether its implemented controller...

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Bibliographic Details
Published in:IEEE transactions on industrial informatics Vol. 16; no. 10; pp. 6499 - 6508
Main Authors: Ma, Canlong, Provost, Julien
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.10.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Automation
Black-box testing
Conformance testing
Design modifications
design-to-test (DTT)
finite state machine
Finite state machines
IEC Standards
Informatics
programmable controller
Programmable controllers
Safety critical
single-input-change (SIC)
Software
Specifications
Testability
Unified modeling language
ISSN:1551-3203, 1941-0050
Online Access:Get full text
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Description
Summary:This article presents a design-to-test (DTT) approach for enhancing black-box complete conformance testing of programmable controllers, where their specifications can be modeled as finite state machines. Given an automation system, the testing objective is to check whether its implemented controllers conform to the expected behavior with regard to the specification models. The DTT approach analyzes the specification models and, if necessary, automatically modifies them at the cost of limited design overhead, so that the testability of the final implemented controllers can be ensured/improved. By design, this approach also guarantees that the behavior of implemented controllers remains unchanged during normal execution (i.e., when not connected to a test bench).
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ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2020.2968480